Tamoxifen for the prevention of breast cancer: current status of the National Surgical Adjuvant Breast and Bowel Project P‐1 study. - Fisher,B.; Costantino,J.P.; Wickerham,D.L.; Cecchini,R.S.; Cronin,W.M.; Robidoux,A.; Bevers,T.B.; Kavanah,M.T.; Atkins,J.N.; Margolese,R.G.; Runowicz,C.D.; James,J.M.; et al. (J Natl Cancer Inst, 2005)